
Alexander Pechenik (ed.)
et al.
Published online:
31 October 2023
Published in print:
12 August 1999
Online ISBN:
9780197704011
Print ISBN:
9780195120509
Contents
Chapter
Neutron-Scattering Studies of Nitride, Oxide, and Phosphate Ceramics and Their Relationship with Molecular-Dynamics Simulations of HighTemperature Properties
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C -K Loong
C -K Loong
Intense Pulsed Neutron Source Division, Argonne National Laboratory, Argonne IL 60439 U. S. A
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Pages
256–266
-
Published:August 1999
Cite
Loong, C -K, 'Neutron-Scattering Studies of Nitride, Oxide, and Phosphate Ceramics and Their Relationship with Molecular-Dynamics Simulations of HighTemperature Properties', in Alexander Pechenik, Rajiv K Kalia, and Priya Vashishta (eds), Computer-Aided Design of High-Temperature Materials (New York, NY , 1999; online edn, Oxford Academic, 31 Oct. 2023), https://doi.org/10.1093/oso/9780195120509.003.0020, accessed 12 May 2025.
Abstract
At room temperature the tensile strength of typical steels varies from 1 to 1.4 GPa, which is two to three times of the flexure strength of the toughest sintered ceramics like silicon nitride or silicon carbide. Therefore, there is little incentive to develop strong ceramic materials for applications under ambient conditions. However, at l 100°C metals soften and become useless, yet the strength of ceramics is essentially unchanged. Moreover, at high temperatures ceramics in general have higher hardness, lower density, lower thermal expansion, and better corrosion and oxidation resistance than metals.
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